Advanced Qualification · A-007 Feedlines and matching · A-007-006-004
Effective Radiated Power means the:
- A power supplied to the antenna before modulation of the carrier
- B power supplied to the transmission line plus antenna gain
- C ratio of signal output power to signal input power
- D transmitter output power, minus line losses, plus antenna gain relative to dipole
Correct answer: D — transmitter output power, minus line losses, plus antenna gain relative to dipole. From the official ISED question bank, verified word for word.
Why
Effective Radiated Power is the actual power your signal radiates into space, calculated by starting with the transmitter's output, subtracting any power lost as heat in the feedline, and then adding the boost provided by the antenna's gain compared to a standard dipole. The full explanation — and one for every question — is in Pro.
Practise this section
Feedlines and matching at the advanced level: transmission line theory, impedance transformation, stubs and matching networks.